Process of making paper bottles.



j I J. R. VAN WORMER. PROCESS OF MAKING PAPER BOTTLES.

APPLIGA'I'IDH FILED DEC. 1, 1911.

Patented Dec. 30,1913.

2 SHEETS-SHEET 1 I I I 1 33141614 4 v w mwmw l J. R. VAN WORMER. PROCESSOF MAKING- PAPER BOTTLES. APPLIOATION FILED DEO.1, 1911.

1,083,263. Patented Dec. 30. 1913.

2 SHEETS-SHEET 2.

GWWWMM I section of the upper end of the finished bot-.

UNITED STATES PATENT OFFICE.

JOHN R. VAN WORMER, OF TOLEDO, OHIO, ASSIGNOR TO THE WEIS-VAN WORMERCOMPANY, OF MONROE, MICHIGAN, A CORPORATION OF MICHIGAN.

PROCESS OF MAKING PAPER BOTTLES.

Specification of Letters Patent. Patented Dec, 30, 1913, Applicationfiled December 1', 1911. Serial No. 663,197.

To all whom it may) concern:

Be it known that I, JOHN R. VA-N Vt'onnnn, a citizen of the UnitedStates of America, and resident of Toledo, Lucas county, Ohio, haveinventeda certain new and useful Improvement in Processes of MakingPaper Bottles, of which the following is a specification.

My invention relates to the manufacture of containers in general butmore particularly to containers or receptacles made of paper, and moreespecially to those that are adaptcd for use as milk bottles.

The object of my invention is to provide a process or method ofmanufacture whereby a paper blank may be folded and secured together toform a square bottle having a flat bottom and a top with-an openingtherein, involving the use of pressure on the inner and outer surfacesof the bottom in gluing.

or otherwise fastening the flaps thereof in place, which internalpressure is exerted over an area greater than the area of said opening,whereby the medium for producing the internal pressure must be capableof expanding after it is introduced into the container through saidopening, or at least of contraction to pass "out of said hole, and

whereby a paper milk container is made with a restricted mouth throughwhich parafiin or the like may then be introduced to seal all-- of thecracks and render the bottle capable of use for holding milk or otherliquids, the exterior of the bottle being similarly treated to give it awaterproof surface.

The nature and advantages of my improved process will, however,hereinafter more fully appear.

In the accompanying drawings-Figure 1 is aperspective of a papercontainer or milk bottle of the kind produced by my improved process.Fig. 2 is a perspective of the blank partially folded. Fig. 3 is adetail vertical tle on line 33 in Fig. 5. Fig. 4 shows the blank spread"out flat. Fig. 5yis a section on line '55 in Fig. 3. Fig. 6 is avertical section of the bottom or lower portion of the bottle on line-66 in- Fig. 7. Fig, 7 is a vertical section on line 77 in Fig. 6.

' As thus illustrated, the blank A has'four parallel score lines a,.a',a and a which divide theblank into five sections 1', 2, 3, 4 and 5. Thesections 1 and 3 have their ends provided with long and short flaps 6,7, 8,

section 1. The flaps 10 and 11 are folded inward, and the flaps 6 and 7are then folded upon each other, thus forming a three-ply top for thebottle, the hole B being cut or punched at the same time, or afterwardif desired, and the material being pressed upward to form a raised areaaround the said hole, as shown in Figs. 1 and 3. This raisingof the topcan be done at any time, as,- for example, when the'gluing is done, orwhen the punching is done, or at a different time. The flaps 8 and 9 arethen folded inward, and the flaps 12 and 13 are then folded upon eachother, thus forming a three-ply bottom. Afterward, the bottle thus madeis itrlgated inside and out with parafiin or the Now, as the containeris to be used as a milk bottle, it is evident that the bottle must bemade and fully completed before the contents is'p'oured in or otherwiseintroduced through the top opening or mouth. vIt becomes aproblem,therefore, how to exert internal weight or pressure suflicient forgluing or otherwise securing the top and bottom flaps together. and thisis especially true of the bottom. While the top is being. made, thebottom is entirely open, and it is comparativelv easy to glue-the flapsand punch the hole in practically one and the same operation, or thehole can be made afterward, as the machine has easy access for thispurpose through the open bottom of the bottle. Also.-

it is possible to forni the raised area around" 55" the mouth of-thebottle. as access to the interior of the bottle at this t me may be'had'through the bottom .v Withithe bottom, however. the situationisdifl'erent, as when this is made the bottleis closed-except for theopening. B in the top, and this opening is of less area than the areaor'extent of internal pressure necessarv on the bottom to produce thedesired result; My invention contem plates, therefore, the introductionthrough the restricted mouth or opening B of a pressure means ormediumwhich will expand and exert pressure over the inner surface of thebottomio an extent greater than the area of the opening; For thispurpose shot or the'like can be used, these small objects beingintroduced through the said opening and then allowed to expand over theinner surface of the bottom of the bottle. Other medium, such ascompressed air, mercury, or even a mechanical device or expanding toolwhich will open up or enlarge after passing through the said opening,can be used if such is desirable and expedient. Having thus supplied apressure over the inner surface of the bottom, or over a portion thereofwhich is of greater area than the opening B, a counter pressure from theoutside can now be exerted on the bottom to compress the flaps togetherwith glue or other adhesive between them. After this, the bottle isthenready for treatment with p'aratfin or the like.

In this way I am enabled to produce a square paper container having asmall or restricted mouth and adapted for use as a milk bottle. As themouth or opening is comparatively small, it is practical and possible toseal it effectively, in any suitable 1 manner, after the bottle has beenfilled with milk or other liquid. Thus a perfect and inexpensive bottleis made from a single paper blank.

'An important consideration of my improved process is the paraflining ofthe con- .tainer after it is made and fastened together. In this way acontainer made from a single folded paper blank, and previously of acharacter not suitable for holding liquids, is produced for satisfactoryuse as a milk bottle. The parafli'ning must be internal as well asexternal, and hence the flaps must all be in place before this part ofthe process is carried out. The top is, therefore, as explained, madefirst to provide a permanent opening through which pressure can beintroduced to hold the bottom flaps in place while the latter are beingglued or otherwise fastened together.

The form of the blank shown economizes the paper, as there. is lesswaste when the blank is cut with the long flaps at one edge opposite theshort flaps at the" other edge. It will also be seen that the shot orother. me-

.dium can be introduced through the bottom quent sealing of the bottle.This punching or cutting is done, of course, while the bottom" is opento afiord access to the interior of the bottle for this purpose. Thepressure means for forming the bottom is not introduced into the, bottleuntil after the top is made and the said opening formed therein.

It is the compression of the three'bottom layers flatwise between theexternal and in ternal pressure that produces the desired result, whichis the last step. Then the bottle with flat sides of one thickness andtop and bottom of three thicknesses each is paraffined inside and out inany suitable manner.

What I claim as my invention is:

1. The process of making a container, such as a paper milk bottle havingatop provided with a restricted mouth of less area than the bottom ofsaid bottle, which comprises the cutting and folding of the paper toform the sides and mouth of the container, the said top being producedby an operation requiring the introduction and withdrawal of pressuremeans through the said bottom,

which is still open to afford access to the ining the flaps for thebottom and securing the same together by internal and external pressurethereon, the internal pressure being exerted over an area larger thanthe area of the said mouth, and then removing the internal pressurethrough said month.

2. The process of making a container, such as a paper milk bottle havinga top provided with a mouth of less area than the bottom of said bottle,which comprises the cutting and folding of the paper to form the sidesand mouth of the container, the said top being produced by an operationrequiring the introduction and, withdrawal of pressure means through thesaid bottom, which is still open to afford access to the interior of thecontainer for this purpose, folding the flaps for the bottom andsecuring the same together by internal and external ressure thereon, theinternal pressure being exerted over an area larger than the area of thesaid month, by pressure means introduced through said mouth and expandedwithin the container, and then removing the internal pressure throughsaid mouth.

3. The process of making a container, such as a paper milk bottle havinga top provided with a mouth ofless area than the bottom of said bottle,which comprises the cutting and -folding of the paper to form 'the sidesand mouth of the container, the said top being produced by an operationre-- qulring the introduction and withdrawal of ,pressure means throughthe said bottom,

which is still open to afiord access to the interior of the containerfor this purpose, folding the flaps for the bottom and securing the sametogether by internal pressure being exerted over an area larger than thearea of the said mouth, removing the internal pressure through saidmouth, and then providing the container inside and out with a suitablecoating.

"folding the flaps for the bottom and securing the same together byinternal and external pressure thereon, the internal pressure beingexerted over an area larger than the area of the said mouth, removingthe lnternal pressure through said mouth, and

' then applying melted paraflin to'the inner and outer surfaces of saidcontainer.

5. The process of making a container, such as a paper milk bottlehaving' a top provided with a mouth of less area than the ottom of saidbottle, which comprises the cutting and folding of the blank to sidesand mouth of the container, the said top being produced by an operationrequiring the introduction and withdrawal of pressure means through thesaid bottom, which is still open to afiord access to the interior of thecontainer for this purpose, folding the flaps for the bottom andsecuring the same together by internal and external pressure thereon,the internal pressure being exerted over an area larger than the area ofthe said mouth, and then removing the internal pressure through saidmouth, the said flaps being thus: subjected to compression with a nadhesive between their opposing surfaces. I

6. The process of making a container, such as a paper milk bottle havinga' top provided with a mouth or opening of less form the area than thebottom of said bottle, which comprises the folding of the blank to formthe sides of the container, securing certain flaps together to form'thesaid top, by an operation requiring the introduction and withdrawal ofpressure means through the said bottom which is still open to aiford ac-7 container, the said top cess to the container for this purpose,punching the said opening in the top, folding the flaps for-the bottomand securing the same together by internal and external pressurethereon, the internal pressure belng exerted over an area larger thanthe area of the said opening, and then removing the internal pressurethrough said opening.

7. The process of making a container, suchuas a paper milkbottle havinga top provided with a mouth or o ening of less area than the bottom ofsai comprises the cuttin and folding of the paper to form the si es andmouth ofthe being produced by an operation requirlng" the introductionlarger bottle, which and withdrawal of. pressure means through the saidbottom which is still open to afford access to the interior of thecontainer for this purpose, folding the flaps for the bottom andsecuring the same together by internal and external pressure thereon,the internal pressure being exerted over an area than the area of thesaid mouth, by pressure means introduced and expanded within the bottleafter the completion of the said top, and then removing the internalpressure through said mouth.

8, The process of making a container, such as apaper milk bottle havinga top provided with a mouth or opening of less area than the bottom ofsaid bottle, which comprises the cutting and folding of the paper toform the sides and mouth of the container, the said top being producedby an operation requiring'the introduction and withdrawal of pressuremeans through the said bottom which is still open to afford access tothe interior'of the container for this purpose, folding the flaps forthe bottom and securing the same together by internal and externalpressure thereon, and then removing vthe internal pressure through said'mouth.

9. The process of making a container, such as a paper milk bottle havinga top provided with a mouth or opening of less area than the bottom ofsaid bottle, which comprises the cutting and folding of the paper toform the sides and mouth of the container, the said top being producedby an operation requiringthe introduction and withdrawal of pressuremeans through the said bottom which is still open to aiford access tothe interior of the container for this purpose, folding the flaps forthe bottom and securing the same together by internal and externalpressure thereon, by pressure means inserted through the said mouth, and

then removing the internal pressure through said mouth.

10. The process of making a bottle, which comprises the folding of ablank to form the four flat sides of the bottle, folding the flaps forthe top, punching or cutting a mouth .in the said top, and then securingthe bottom flaps together by an operation including the use of internalpressure, involving the. introduction and withdrawal of the pressuremeans through said mouth;

11. The process of making a bottle, which includes the folding of ablank to form the sides of the bottle, folding certain flaps to form thetop, and then making the mouth of the bottle by punching or cutting outa disk to form the saidtop from an openinghaving a clean and true edge,by an operation requiring access through the bottom of the bottle whichis still open for this purpose.

12. The process of making a bottle with a restricted mouth in the topthereof, which v sides of the bottle,

comprises the cutting and folding of sheet; material to form the saidmouth and the four flat sides of the bottle, and then securing thebottom flaps together by an operation requiring the introduction ofpressure means through one end of the bottle and the withdrawal of thesame through said mouth.

13. The process of making a bottle with a restricted mouth in the topthereof, which comprises the cutting and folding of sheet material toform the said mouth and the four flat sides of the bottle, the flaps forthe said top being secured together by an operation including accessthrough the bottom of the bottle Which is still open for this purpose,and then-securing the bottom flaps together by an operation requiringthe in trocluction of pressure means through one end of the bottle andthe withdrawal of the same through said mouth.

14. The process of; making a bottle, which comprises the folding of ablank toform the flat sides of the bottle, folding the flaps for thetop, punching or cutting a mouth in the said top, and then securing thebottom flaps together by an operation including the use of internalpressure, involving the introduction and withdrawal of the pressuremeans through said mouth.

15. The process of making a bottle with a restricted mouth in the topthereof, which comprises the cutting and folding of sheet material toform the said mouth and the flat and then securing the bottom flapstogether by an operation requiring the introduction of pressure meansthrough one end of the bottle, and the Withdrawal of the same throughsaid mouth...

16. The process of making a bottle, which comprises the folding of ablank to form the four flat sides of the bottle, folding the flaps forthe top, punching or cutting a mouth in the said top, and thensecuring-the bottom flaps together by an operation including the use ofinternal pressure, involving the introduction and Withdrawal of thepressure means through said mouth, the making of the said top alsorequiring access through the bottom of the bottle to form a raised areaaround the said mouth.

17. The processof making a bottle with a mouth in the top thereof, whichcomprises the cutting and folding of a blank to form 5 notches the mouthand four flat sides of the bottle, and then securing the bottom flapstogether by an operation requiring the introduction of pressure meansthrough one end of the bottleand the withdrawal of the same through saidmouth, the making of the said top also requiring' access through thebottom of the bottle to form a raised area around the said mouth.

18. The process of making a bottle, which comprises the folding of ablank to form of the bottle, folding the punching or cutting a top, andthen securing the four fiat sides flaps for the top, mouth in the saidthe bottom flaps together by an operation including the use of internalpressure 1nvolving the introduction and withdrawal of the pressure meansthrough said mouth, and then introducing a water-proof substance throughsaid mouth to coat the interior of the bottle.

19. The process of making a bottle with a restricted mouth in the topthereof, which 1 comprises thecutting and folding of a blank to form thesaid mouth and the four flat sides of the bottle, and then securing thebottom flaps together by an operation requiring the introduction ofpressure means through one end of the bottle and the Withdrawal of thesame through said mouth, and then introducing a Water-proof substancethrough said mouth to coat the interior of the bottle.

20. The process of making a bottle having a restricted mouth in the topthereof, which includes the punching and folding of a blank to form thesides and top of the bottle, said punching serving to make holes in theblankfor the mouth of the bottle, folding and securing together certainflaps to form the permanently closed bottom of the bottle, by pressuremeans introduced through one end of the partially formed bottle, afterthe completion of the top thereof, and withdrawing said means through'said mouth.

Signed by me at Monroe, Michigan, this 27th day of Nov 1911.

JOHN R. VAN WORMER.

Witnesses:

GEORGE K. DENTET, ALBERT G. WUns'r;

